Large parts of the United States and some areas in Canada could face energy shortfalls during periods of extreme heat this summer, the North American Electric Reliability Corp (NERC) warned in its summer outlook released on May 17.

The U.S. West, Midwest, Texas, Southeast, and New England, along with Ontario in Canada, are at elevated risk of insufficient operating reserves in above-normal conditions, said the NERC.

While there are no high-risk areas in this year's assessment, the number of areas identified as being at elevated risk has increased.

Specific challenges facing these areas during the summer peak period are outlined in the NERC's 2023 Summer Reliability Assessment, which put two-thirds of North America is at risk of energy shortfalls this summer during periods of extreme demand.

Limited operation of coal-fired power plants due to new environmental regulations, low water levels on major reservoirs, unexpected tripping of wind and solar resources, and curtailed transfers to areas in need also posed reliability concerns, NERC said.

(Writing by Alex Guo  Editing by Harry Huo)
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